Different organisms have different traits, or characteristics. Some of an organism's traits are inherited from the organism's parents, while other traits are more strongly influenced by the organism's environment. Different organisms have different traits, or characteristics. Some of an organism's traits are inherited from the organism's parents, while other traits are more strongly influenced by the organism's environment.

Among most animals, which two of the following traits tend to be more strongly influenced by an organism's environment than by its genetics?
Sex, Body Weight, Knowledge, Blood Type